在flutter应用程序中包含firebase_storage的最佳方法是什么？

Question

我需要在Firebase中存储几个文件。我正在使用android模拟器。 问题是：当我将包包含在yaml（firebase_storage）中时，出现一个大错误，该错误在哪里说下一个：

FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not resolve com.google.firebase:firebase-storage:16.0.3.
  Required by:
      project :app > project :firebase_storage
   > Could not resolve com.google.firebase:firebase-storage:16.0.3.
      > Could not get resource 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
         > Could not GET 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
            > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
   > Could not resolve com.google.firebase:firebase-storage:16.0.3.
      > Could not get resource 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
         > Could not GET 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
            > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
   > Could not resolve com.google.firebase:firebase-storage:16.0.3.
      > Could not get resource 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
         > Could not GET 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
            > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
   > Could not resolve com.google.firebase:firebase-storage:16.0.3.
      > Could not get resource 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
         > Could not GET 'https://dl.google.com/dl/android/maven2/com/google/firebase/firebase-storage/16.0.3/firebase-storage-16.0.3.pom'.
            > sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run
with --scan to get full insights.

* Get more help at https://help.gradle.org

我尝试按照Google firebase官方页面给出的步骤在flutter项目中设置了一个firebase项目。 我也尝试将此代码添加到我的android / gradle：

subprojects{
    project.configurations.all {
        resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.android.support'
            && !details.requested.name.contains('multidex')) {
                details.useVersion "26.1.0"
            }
        }
    }
}

目前，由于这个原因，我无法运行我的应用程序。 我想知道在Firebase中存储文件的最佳方法是什么。

Answer 1

考虑遵循此codelab，或阅读here，以防万一您错过了一步。 （google-services.json或SHA键等）

如果一切都准备就绪，则可能与AndroidX有关。

当您检查changelog.md时，会看到版本0.9.0上的重大更改。

尝试使用previous packages或migrate到AndroidX的项目来避免使用AndroidX。